LEADER 00691nam2 22002171i 450 001 990002294760403321 035 $a000229476 035 $aFED01000229476 035 $a(Aleph)000229476FED01 035 $a000229476 100 $a20030801d--------km-y0itay50------ba 200 1 $aStructure of five-membered rings with twoor more heteroatoms. Oxford, 1984, v. 5.4A, p. 1-38. 463 0$1001000222363 701 1$aKatritzky,$bAlan R.$091293 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990002294760403321 959 $aFFABC 996 $aStructure of five-membered rings with twoor more heteroatoms. Oxford, 1984, v. 5.4A, p. 1-38$9386988 997 $aUNINA DB $aING01